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综述了干式切削加工中不同刀具材料的物理性能，阐述了它们在不同领域应用的特点，对比了不同刀 具应用于干式切削加工的切削性能。
The physical properties of different tool materials in dry machining are reviewed. Their applications in different fields are expounded. The cutting performance of different tools used in dry machining is compared.